Anesthetizing



oct. 23, 192s. I 1,688,332

J. B. HECK,YJR., ETAL ANESTHETIZING Filed June 27, 1927 Patented Oct. 23, 1928.

VUNITED .s'rares'v PATENT 'ori-lea f JOHN B/HECK, Jn., AND JosEPHJjfsWnEN'EY, oF '.roLnno, omo. f

'ANfEs'rHETIzrNa Application led .Time 27, 11927. Serial No. 201,583.

This invention relates to hypodermic administration.` l y This invention hasutilitywhen incorporated as a llocal,anaestheticblocking out operation.

Referring to the drawings:

Fig. 1 is a side elevation, with parts broken away, showing an embodiment of the invention in a hypodermic needle stitching director or operator; Y y

Fig. 2 is a sect-ion onthe line 11p-II, Fig. 1; i

Fig. 3 is la section on theline 11T-III, FiO. 2,*looking in the direction of theyarrow 5 Fig. 4 is a section on the line IV-IV, Fig. 2, lookingin Ithe direction of the arrow;

Fig. 5 is a section -on the line iL-V, Fig. 2, looking in the direction of the arrow;

Fig. 6 is a fragmentary 'view or the needle actuating device showing the needle in withdrawn position instead of projectingposition as shown in Fig. 4; and

` Fig. 7 is a detail view of the rocking path of the direction of the needle in addition to itsv reciprocation. Y

Cylindrical handle 1 is shown yasvvhaving chamber 2 upon which may actrpiston 3 as directedby piston rod 4 extending ythrough charging cap 5 and operated by i-ngerring 6 for producing a head or pressure. onanaesthetic in the chamber' 2. Finger ring 7 `fixed with the cap 5 and thus assembled with the handle 1 makes it convenient for the one operating this tool to have fingers in the ring 7 and thumb inthe ring 6 for effecting a thrusting of the piston rod 4 for producing the pressure head on the anaesthetic in the chamber 2 by the handle 1.

This handle 1 is Aprovided with cross head 8 having spring arm 9 detachably mounted therewith by screw 10. Rigid with this cross head 8 is arm 11 in parallelism with the arm 9. From the chamber 2 extends duct 12 by passage 13 into tubular arm- 11. The arm 9 terminates in flange 14 from which extends axle 15 parallel to the head 8. This axle 15 terminates in seat 16 coacting with seat 17 in the tubular arm 11 for there registering duct 18 in the axle 15 with the duct in the tubular arm 11. v

Key 19 serves to anchor disk 20 against rotation upon the axle 15, and thus'maintains in assemblythereon roller having disk 21 adjacent the ange 14. This disk 21 has sleeve portion 22 as its bearing on the axle 15. This disk 21 carries rim portion 23 for the roller upon whichvis mounted tread K say of ak friction chara'cte'ristic,y as rubber,r `1n a material'which may be readily sterilized.

[Fixedly mounted with this roller ofthe disk.V 21 by key 25 yis"` toothed wheel 26. Loosely mounted on the axle 22 between this toothed wheel 26 vand the disk 20 is sleeve 27 carrying tubular arm 28 asa radially extendingguide ior plunger 29 having mountedtherein hypodermic needle 30. This needle i 30 `is detachably anchored inthe plunger 29 by pin 31. 1

n The plunger 29 isprovided with projectingpin 32 engaged by fork terminus 33 of arm 34 mounted on pin 35 vfast with the disk 20. Fixed with-the arm 34 is short arm 36 of this vangle lever34, 36. This yarm 36 of the anglelever carries pin 37 yoperable in slot y38 ol arm 39 mounted on bearing 40 also lixed with the disk 20. Thisarm 39 has branch arm41 carrying roller 42 oper-` ating against the-lperiphery of the toothed disk 26. Also fixed rigidly withv the arms 39, 41, is arm 43 lof identical length with' the arm 41 from the` ymounting bearing `40.

.This arm 43 carries roller 44 coacting with the longer `radins portion or` outer portion of a tooth of thedisk 26 when the roller 42 oi' the arm 41 is lin the root or the shorter-radius portion of the toothed wheel 26. It is accord,

ingly seen that asthe roller23 operates to adjacent the angle lever 39,` 41, 43, is angle lever 47,48. `The arm 47 carries roller`49 riding radially outward as the needle 30 is at its inner limit of travel. This means that this positive throw ofthe lever 47, 48, is effective through slot 50 in the arm48 as engaging pin 51 in arm 52 of the sleeve 27 for rocking this sleeve 27 together with the plunger 29 and needle 30 in a recover direction toward an approaching rim opening 45. This means that as so directed, the needle 3() in the radial outward projection, may be thrustintotheliesh of the individual under or' 4'the roller, they levery 47, 48, allOWS" this f going treatment Without any tearing action upon the lesh, for in the continuing travel plunger and needle SO'to be gnidedby the iiesh andfthus inovevvitli the tread of the roller` f as long as the needle is projected therefrom. As the needle 30 is retracted into the roller clear of the riin opening- 45, this leverY 47, 4 8, is agai-neiective vfor the step in advance.

Aligned Witlithe'openingsf45 ofthe riin Withslight following relationship are vopenbranch 54 `coinesinto 'reist'r Witha radial a, o .Y

As `the sleeve 27r is 4rocked into ythe 'adl- Vance position', and thereafter as the-'lever arni 34has acted to ,thrust the needle SOinto the flesh, then 4duct 1852er,-havingjradial duct 58fin` the sleeve 2'?V forl'supplying'pfa chargeofanaes'thetic 'under the head as created y in the chamber 2 for flow into chainberf through the tubularplunger Q9 and the tu-V bular hypoderniic needle 30,1201' discharge,inv-k to flesh`f56 of the patient at the interval ot complete .insertion and` early portion-of the r withdrawing 'of the'needle 30. This'delivery ytlietic in a'region of flesh.,vr The tool is one which kmay be' readily Ioleansedfor rendered sterile and readily charged as ahypoderinio syringe. L

` Nhatis clainiedand itis de-sired'to secure' y by Lettersllatent is: Y i f l. 'A ,local anaesthetic administering `tool comprising a handle,a` traveling carrie'r niovable asto the" handle, a hypoderini'c needle s positioned by the handle and as to Which they carrier is movable, and actuating connectionsi'roni the carrier for reciprocating the needle as to the carrier. 2.. A local aneesthetio administering tool coinprisingatraveling carrier, a hypoderinic `needle( as to which" the carrier is movable,

and actuating connections from kthe carrier for 'reciprocating' thel needle during 'carrier inoveinent relatively to thefneedle.v

3l A localanaesthetic `adi'ninistering tool coniprisinga traveling 'carrieiga hypoderinic y `needle as to which the carrier is movable, and actuating connections from the carrier, for

providing anaesthetio supply tofthe needle during earrierniovenient relatively tofthe I-leecue'-y I .f1 Y. v i" 4. A local aneesthetic Aadministering tool comprising a traveling carrier, a'hypoderinic needle, and control connections from thecar- 'rier for reciprocating Athe needle and synchroni'zing lWith such "reciprocation anaestheticsupply-to'the needle. L

'5, A directing handle, ya froller'l providing a Way, a hypoderniic needle,` actuating connection from the rollery for reciprocating the needle through said rectinggthe needle.

G. AQ directingl handle having a reservoir for an anaestlietic, a roller providing ay Way, a hypoderrnic needle mounted Within the roller, actuating l connection lfrom theroller ior reciprocating'the needle through said Way, a resetfor direeting the needle,` a ductifroni Vivay, andy a reset ordi- Athe reservoir' controllably connectible lon needle yprojection With*` the needle, and

y means 'for producing a head'on :the reservoir for ypromoting vanse-'sthe'ti'e delivery to the needle.

InA Witness whereof We affix our signatureslV JOHNBHECK, JR.l

JOSEPH'LSWEENEY; 7 n 

